/* 
* @Author: LDF QQ 47121862
* @Date:   2014-05-16 17:33:15
* @Last Modified by:   LDF QQ 47121862
* @Last Modified time: 2014-05-23 22:51:32
*/
body{background: #ddd;}
h1{text-align: center;}
#s1,#s2,#s3,#s4{ border:5px solid #fff; margin:0 auto; position: relative;}
#s1 .pic a,#s2 .pic a,#s3 .pic a,#s4 .pic a{ display:none; position: absolute; }
#s1,#s1 .pic img{ width:800px;height: 460px;}
#s2,#s2 .pic img{ width:500px;height: 333px;}
#s3,#s3 .pic img{ width:500px;height: 333px;}
#s4,#s4 .pic img{ width:600px;height: 333px;}